Compression-lock.



G. C. JENSEN.

COMPRESSION LOCK.

APPLICATION FILED DEC. 24, M3.

1 m mmmeu min M, 1m.

2 SHEETS--SHEET 1.

WITNESS I N VEN TOR kW v A TTORNEYS G. C. JENSEN.

COMPRESSION LOCK.

APPLICATION FILED DEC. 24, 1918. L29fi69- Patented Feb. 18, 1919.

2 SHEETS-SHEEI 2 WITNESS I A TTORNE YS GEORGE C. JENSEN, OF OAKLAND, CALIFORNIA.

COMPRESSION-LOCK.

Specification of Letters Patent.

Patented Feb. 18, 1919.

Application filed December 24, 1918. Serial No. 268,195.

To all whom it may concern:

Be it known that I, Grouse Jansen, a citizen of the United States, resldm at Oakland, in the county of Alameda an State of California, have invented certainnew and useful Im rovements in Compression-Locks, of which t e following is a specification.

This invention relates more particularly to a lockin means for motor vehicles and wherein a ock is provided for precluding movement of the vehicle when desired, it being preferably connected to the interior of the cylinder of the motor and constructed in such manner that the compression created during the operation of the motor maintains the lock in inoperative or released position. In the stopping of motor vehicles it is desirable, and in fact necessary in order toavoid injury to electric ignition mechanism for the motor to cut off or interrupt the electrical supply or ignition circuit of the motor, and it is one of the objects of the present invention to connect a controllin means for the lock mechanism with said clrcuit interrupting means whereby on the interruption of the ignition circuit the com ression between .the'lock mechanism and t e motor is manually and positively released thereby insuring operation of the lock mechanism on the stopping of the motor when the ignition circuit therefor is'cut of.

To morev fully comprehend the present invention, reference is directed to the accompanying drawings, wherein Figure 1 is a view in elevation of the power plant for a motor vehicle, illustrating the preferred embodiment of my invention employed in connection therewith.

Fig. 2 is. a vertical sectional view of the preferred form of locking mechanism.

Fig. 3 is a sectional view of the locking bolt, taken on line 33 of Fig. 2.

Fig. 4 is a vertical sectional view of a modified form of bolt operating mechanism.

Fig. 5is a sectional view of the locking bolt taken on line 5-5 of Fig. 4.

Fig. 6 is a sectional view of the bolt operating plunger taken on line 6-6 of Fig. 4.

Fig. 7 is a sectional view of the contro ling valve in the line connection between the lock casin and the compression side of the motor, the view being taken on line 77, Fig. 1 of the drawings.

In the drawings wherein like characters of reference dcsi ate correspondin parts, 1 indicates a suitable internal com ust'ion motor associated with the vehicle change speed gearing, not shown, and contained within a housing 2, from which extends the usual vehicle propeller shaft 3. 'The motor 'is provided with the usual inlet manifold 4,

to which is attached the carbureter, not shown, and said motor is also provided with the usual exhaust manifold 6.

Within the housing 2 are preferably positioned the longitudinally movable gear shifting devices or rods 7, which are selectively operated to effect the desired speed changes of the gearing by the operation of the lever 7, and said rods 7 are provided on adjacent faces with semi-circular recesses 8, so positioned as .to aline with each other on the movement of the rods by the lever 7 to position the gears controlled by the rods in what is commonly termed, neutral or non-power transmitting position. The recesses 8 when in alinement are adapted to register with a bore 9 formed in the housing 2, and which passes between the rods 7 said bore having positioned therein for reciprocating move ment the lower end of a locking bolt 10 which is formed in its periphery with other semi circular recesses 11, which are adapted when the bolt is in released or inoperative position, as 1n Figs. 2 and 3 of the drawings, to register with the recesses 8, and permit longitudinal movement of the rods 7 by the lever 7 The recesses 8 are adapted to receive the solid portion of the lower end of the bolt 10 when the same are in alinement and when the bolt is reciprocated or drawn upwardly into locked or operative position, thus. the movement of said rods is precluded until such time as the bolt is again moved as hereinafter described into ieleased or inoperative position.

The upper end of the locking bolt 10 extends into a suitable bore 12, and has an enlarged head 13 which fits the upper open end 14 of said bore. The bolt body operates through a chamber 12 and is provided with a iston 13 carrying a suitable washer or ot er packing 15 which has contact with the walls of the chamber 12. When in its uppermost position, it is desirable to lock the bolt from further operation, any suitable means for automatically Lockin the same may be employed, that illustrate con sisting of an outwardly spring pressed latch 16 mounted within a transverse recess 17 in the enlarged head 13, the same adapted for retraction by the operation of a key-conviding a manual trolled barrel 18 opening through a cylinder 19, into the upper end of the head 13, said latch when the bolt moves upwardly in said chamber to lock said rods from movement being received in a depression 20 in the wall of said enlarged end 14 of the bore compression is maintained in the chamber 12, during the operation of the motor.

w The pipe 22 connects with the valve casing 25 formed with a lateral 26, and having rotatabl mounted therein a suitable turn plug 2", connected with and adapted for rotation on the operation of the ignition switch 28 controlling the motor ignition circuit. The plug is provided with a trans verse channel 29 therein, adapted to connect the sections of pipe 22 during such time as the ignition circuit is in on or operative position, thus permitting the coin ression of the motor to be maintained in tie pipe 22. A lateral 30 is also formed in said plug 27 and communicates withthechannel 29, said lateral 30 and one end of said channel providing a direct connection through said port 26 to the atmosphere and to said pipe 22 on the manual operat on of said plug in the positioning of the ignitlon switch 28 in oif or ino erative position, thus prol y operated means for interrupting or releasing the compression in the pipe22, whemthe motor is stopped on the interruption of the ignition circuit.

It is apparent that I have provided a locking mechanism which is maintained open or in released position as long as the motor is in operation or compression is mamtained on the piston 13, and associate therewith means whereby said compression is released on the interruption of the motor ignition circuit, and which permits the vehicle to be locked from use by unauthorized ersons until such time as the locking means is manually released after the motor 15 again started.

In Figs. 4 and 6, a rotating locking bolt is illustrated and said bolt other than being capable of rotation is in all respects similar to the bolt 10, with the exception that the same is provided intermediate of its length with a gear 31 with which cooperates a rack 32 carried by a reciprocating plunger or piston 33, slidably mounted in a bore 34 intersecting the chamber 12. The plunger is naeaeee normally forced into operative position and to rotate the bolt 10 into position to lock the rods 7 from movement by a coil spring 35, and is held in its retracted or inoperative position to maintain the bolt 10 in unlocked position as in Fig. 5 of the drawings by the compression of the motor which is created in rear of said piston by the connection of the rear end of the bore 34 with the compression side of the motor through the pipe 37.

If desired a pressure accumulating chamber 36 may be positioned in the line 22 intermediate the motor and valve 25 to insure sufiieient 'fluid under compression to maintain the lock in released position.

Having thus described my invention what I claim is v 1. In combination with a motor driven vehicle including a motor and power transmitting mechanism associated therewith, a movable member included in said transmission, 'a lock associated with said movable member, and adapted when in operative position for locking said member from movement, a plunger associated with said look,

a connection between said motor and lock whereby the compression of the motor during the operation thereof operates said plunger to maintain said lock in inoperative position, means within said connection and capable oi' manual operation for releasing the compression between the motor and plungel, means for automatically moving said ook to operative position on the releasing of the compression between the plunger and motor, and releasable lock controlled means for locking said lock in its latter position. 2, In combination with a motor driven .azehicle including a motor and a power transmitting mechanism associated therewith and capable of movement into and out of power transmitting position, a locking member associated with certain elements of said mechanism and adapted when in operative position for locking said elements associated therewith from operative movement, means for moving said lock into operative position, means for locking said lock in operative position, a connection between said motor and lock whereby said lock is acted on by the compression of the motor on the operation thereof and is maintained thereby in inoperative position during the maintaining of such compression.

3. In combination with a motor driven vehicle including an internal combustion motor and a power transmitting mechanism associated therewith, said power transmitting mechanism including power transmitting gear shifter devices, a locking bolt associated with said shifter devices and adapted for movement into operative position for locking said devices from operative movement, a tubular chamber within which said aaaaees in said tubular connection, means within said connection for releasing the compression between the motor and bolt chamber, and re-" leasable lock controlled means for locking said bolt in its operative position when moved thereinto.

4. Incombination with a motor driven vehicle, including a motor and power transmitting mechanism associated therewith, a movable member included in said transmission mechanism,- a lock associated with said movable member and adapted for locking said member from movement, a casing within which said lock operates, a tubular connection between said motor and lock casing for admitting compression from the motor to said lock casing, and means within said connection and capable of manual operation for controlling the operation of said look by the motor compression.

5. In combination with a motor driven vehicle, including a motor and power transmitting mechanism associated therewith, a movable member included in said transmis sion mechanism, a lock associated with said movable member and adapted for locking said member from movement, a casing within which said lock operates, a tubular connection between said motor and lock-casing for admitting compression from the motor to said lock casing, and a manually operated valve within said connection and capable of operation for controlling the operation of said lock by the compression of the motor.

6. In combination with a motor driven vehicle, including a motor and power transmitting mechanism associated therewith, a movable member included in said transmission mechanism, a lock associated with said movable member and adapted for locking said member from movement, a casing within which said lock operates, a tubular connection between said motor and lock casing for admitting compression from the motor to said lock casing, a manually operated valve within said connection and capable of operation for. controlling the operation of said lock by the compression of the motor, and releasable lock controlled means for locking said look when moved to a position to preclude movement of said movable member.

In testimony whereof I have signed my name-to this specification in the presence of a subscribing witness.

GEORGE O. JENSEN.

Witness D. B. RICHARDS. 

